. >> breaking news, you're looking live at a community in mourning and shock after one of the worst mass shootings in history. a gunman walked into the sandy hook elementary school in newtown, connecticut and opened fire. >> he came late in my life but jesse was my best friend and my buddy, too. my little boy said something the night before to me and he said, dad, this is going to be the best christmas ever. and he was going on about it and i said, jesse, you know, it's -- you know, we'll make it the best we can and i don't have much family so it's kind of a quiet time for me and he made christmas happy for me and joyful and he made it what it was and i said to him, jess, we'll make it the best we can. and the next day this tragedy happened that occurred and i thought to myself, boy, was he wrong about that. >> the ar-15, as we've now seen from the last three mass shootings in america, aurora, oregon and now the sandy hook school is the preferred choice of weapon for disturbed young men who want to commit atrocities. the president of the united states has indicated he wants to ban assaul